Name requested: Pseudohelotium canadenseMycologia 70 (3): 521.
Heterotypic synonym: Peziza cyathoideaMycologia 34 (2): 161, 179. 70 (6): 1234. Mycological Papers 62: 21. Mycotaxon 45: 7. Persoonia 3 (1): 30.
Heterotypic synonym: Hymenoscyphus cyathoideusPersoonia 3 (1): 30.
Heterotypic synonym: Peziza petasataMycological Papers 62: 26.
Heterotypic synonym: Helotium urticaeMycotaxon 45: 23.
Heterotypic synonym: Helotium petasatumMycological Papers 62: 26.
Heterotypic synonym: Helotium cyathoideumMycologia 34 (2): 179. Mycological Papers 62: 21, 21. Persoonia 3 (1): 31, 51.
Heterotypic synonym: Cyathicula cyathoideaMycologia 70 (6): 1224. Persoonia 14 (4): 501.
Heterotypic synonym: Phialea cyathoideaAnnales Mycologici 6 (3): 207. 12 (1): 6. 12 (4): 426. 15 (1-2): 101. 25 (3-4): 370. Mycologia 9 (5): 288. 34 (2): 230. 39 (6): 680, 681. Mycological Papers 62: 21. Mycology and Phytopathology [as Микология и Фитопатология] 9 (5): 436. 12 (5): 448. Persoonia 3 (1): 30. Sydowia 12 (1-6): 488.
Heterotypic synonym: Calycella cyathoideaMycological Papers 61: 21.
Heterotypic synonym: Hymenoscypha cyathoideaMycological Papers 62: 21.
Heterotypic synonym: Hymenoscypha concolorMycological Papers 62: 24.
Heterotypic synonym: Phialea urticaeMycologia 1 (3): 111. 9 (5): 288. Mycology and Phytopathology [as Микология и Фитопатология] 9 (5): 436. 12 (5): 448.
Heterotypic synonym: Phialea concolorMycological Papers 62: 24.
Heterotypic synonym: Phialea petasataMycological Papers 62: 26.
Heterotypic synonym: Helotium concolorMycological Papers 62: 24.
Heterotypic synonym: Hymenoscyphus petasatusMycological Papers 62: 26.
Heterotypic synonym: Micropodia concolorMycological Papers 61: 24.
Heterotypic synonym: Phialea pallidaMycologia 39 (6): 636, 681, 689.
Heterotypic synonym: Phialea umbellulariaeMycologia 50 (5): 652, 652, 653, 653. Mycotaxon 62: 272.
Heterotypic synonym: Crocicreas cyathoideumMycotaxon 61: 7.